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1.1 root 1: /* Template for s- header files.
2: This file describes the parameters that s- files should define or not.
3: Copyright (C) 1985, 1986 Free Software Foundation, Inc.
4:
5: This file is part of GNU Emacs.
6:
7: GNU Emacs is free software; you can redistribute it and/or modify
8: it under the terms of the GNU General Public License as published by
9: the Free Software Foundation; either version 1, or (at your option)
10: any later version.
11:
12: GNU Emacs is distributed in the hope that it will be useful,
13: but WITHOUT ANY WARRANTY; without even the implied warranty of
14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: GNU General Public License for more details.
16:
17: You should have received a copy of the GNU General Public License
18: along with GNU Emacs; see the file COPYING. If not, write to
19: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
20:
21:
22: /*
23: * Define symbols to identify the version of Unix this is.
24: * Define all the symbols that apply correctly.
25: */
26:
27: /* #define UNIPLUS */
28: /* #define USG5 */
29: /* #define USG */
30: /* #define HPUX */
31: /* #define UMAX */
32: /* #define BSD4_1 */
33: /* #define BSD4_2 */
34: /* #define BSD4_3 */
35: /* #define BSD */
36: /* #define VMS */
37:
38: /* SYSTEM_TYPE should indicate the kind of system you are using.
39: It sets the Lisp variable system-type. */
40:
41: #define SYSTEM_TYPE "berkeley-unix"
42:
43: /* NOMULTIPLEJOBS should be defined if your system's shell
44: does not have "job control" (the ability to stop a program,
45: run some other program, then continue the first one). */
46:
47: /* #define NOMULTIPLEJOBS */
48:
49: /* Emacs can read input using SIGIO and buffering characters itself,
50: or using CBREAK mode and making C-g cause SIGINT.
51: The choice is controlled by the variable interrupt_input.
52: Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
53:
54: SIGIO can be used only on systems that implement it (4.2 and 4.3).
55: CBREAK mode has two disadvatages
56: 1) At least in 4.2, it is impossible to handle the Meta key properly.
57: I hear that in system V this problem does not exist.
58: 2) Control-G causes output to be discarded.
59: I do not know whether this can be fixed in system V.
60:
61: Another method of doing input is planned but not implemented.
62: It would have Emacs fork off a separate process
63: to read the input and send it to the true Emacs process
64: through a pipe.
65: */
66:
67: #define INTERRUPT_INPUT
68:
69: /* Letter to use in finding device name of first pty,
70: if system supports pty's. 'a' means it is /dev/ptya0 */
71:
72: #define FIRST_PTY_LETTER 'a'
73:
74: /*
75: * Define HAVE_TIMEVAL if the system supports the BSD style clock values.
76: * Look in <sys/time.h> for a timeval structure.
77: */
78:
79: #define HAVE_TIMEVAL
80:
81: /*
82: * Define HAVE_SELECT if the system supports the `select' system call.
83: */
84:
85: /* #define HAVE_SELECT */
86:
87: /*
88: * Define HAVE_PTYS if the system supports pty devices.
89: */
90:
91: #define HAVE_PTYS
92:
93: /*
94: * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
95: * The 4.2 opendir, etc., library functions.
96: */
97:
98: #define NONSYSTEM_DIR_LIBRARY
99:
100: /* Define this symbol if your system has the functions bcopy, etc. */
101:
102: #define BSTRING
103:
104: /* subprocesses should be defined if you want to
105: have code for asynchronous subprocesses
106: (as used in M-x compile and M-x shell).
107: This is generally OS dependent, and not supported
108: under most USG systems. */
109:
110: #define subprocesses
111:
112: /* If your system uses COFF (Common Object File Format) then define the
113: preprocessor symbol "COFF". */
114:
115: /* #define COFF */
116:
117: /* define MAIL_USE_FLOCK if the mailer uses flock
118: to interlock access to /usr/spool/mail/$USER.
119: The alternative is that a lock file named
120: /usr/spool/mail/$USER.lock. */
121:
122: #define MAIL_USE_FLOCK
123:
124: /* Define CLASH_DETECTION if you want lock files to be written
125: so that Emacs can tell instantly when you try to modify
126: a file that someone else has modified in his Emacs. */
127:
128: #define CLASH_DETECTION
129:
130: /* Here, on a separate page, add any special hacks needed
131: to make Emacs work on this system. For example,
132: you might define certain system call names that don't
133: exist on your system, or that do different things on
134: your system and must be used only through an encapsulation
135: (Which you should place, by convention, in sysdep.c). */
136:
137: /* Some compilers tend to put everything declared static
138: into the initialized data area, which becomes pure after dumping Emacs.
139: On these systems, you must #define static as nothing to foil this.
140: Note that emacs carefully avoids static vars inside functions. */
141:
142: /* #define static */
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